אֲדֹנָ֣י יְהֹוִ֗ה נָ֤תַן לִי֙ לְשׁ֣וֹן לִמּוּדִ֔ים לָדַ֛עַת לָע֥וּת אֶת־יָעֵ֖ף דָּבָ֑ר יָעִ֣יר ׀ בַּבֹּ֣קֶר בַּבֹּ֗קֶר יָעִ֥יר לִי֙ אֹ֔זֶן לִשְׁמֹ֖עַ כַּלִּמּוּדִֽים׃
Il Signore Dio mi ha dato la lingua di coloro a cui viene insegnato, che dovrei sapere come sostenere con le parole chi è stanco; Si sveglia mattina dopo mattina, sveglia il mio orecchio per ascoltare come viene loro insegnato.
Mishnah Eduyot
Rabbi Hanina, chief of the priests, said: “All my days I never saw a hide taken out to the place of burning.” Rabbi Akiba said: “From his words we infer that whoever flays the hide of the firstborn beast and it is found to be trefah, the priests may enjoy the use of the hide.” But the Sages say: “[A testimony which consists of] ‘we didn’t see’ is not a proof; rather the hide must be taken out to the place of burning.
Mishnah Zevachim
All sacrifices which became disqualified, before they were flayed, their hides do not belong to the priests. After they were flayed, their hides belong to the priests. Rabbi Hanina vice-chief of the priests said: Never in my life have I seen a hide go out to the place of burning. Rabbi Akiva said: we learn from his words that if one flays a firstling and it is found to be terefah, the priests have a right to its hide. But the sages say: “I have never seen” is not proof: rather, it [the hide] must go forth to the place of burning.